3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:29

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General

Target

3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe
Size

53KB
MD5

8547ae030dd47cdfb5c07e3156679620
SHA1

fde8f6b7cb39fd3b2472243b46bf01047d963fdf
SHA256

3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34
SHA512

c28027d5bdf8fa62265d1cee561337439c60a8ee899b1baac4495561052ded431e5c842fbed6e2816e608be353dcb5281d0a4352aa7b72e787b1aa8bd65fefa3
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIk:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYV2

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
280	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
280	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 280	1864	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe	30
PID 1864 wrote to memory of 280	1864	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe	30
PID 1864 wrote to memory of 280	1864	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe	30
PID 1864 wrote to memory of 280	1864	3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe	30

C:\Users\Admin\AppData\Local\Temp\3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe
"C:\Users\Admin\AppData\Local\Temp\3a277bb12fb6b31a191b3e71a31c57e29775cb462fb265948dac610b8d217a34N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
53KB

MD5
3e25c4391c591a4059801ea2ad189c07

SHA1
40b09549c2a1ed00c83c6a5e074b06ae6a250d81

SHA256
b16f36975c102e02bc3d7c0ad354a9c6defa820468ade4e0c246c6ba13c14235

SHA512
84d2b83391b82cceab3a08c46ff7823ecda02daae58457f8365f0f437f9de5ae8404ef5ff378489041d0c712a8308ae46b7f934e64449489cc041e8d5951b41f

Download Submit
memory/280-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/280-10-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1864-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1864-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads